/Engine/Plugins/FX/Niagara/Source/Niagara/Public/NiagaraWorldManager.h
[FNiagaraSystemSimulationRef](API\Plugins\Niagara\FNiagaraSystemSimulationRef) GetSystemSimulation ( ETickingGroup TickGroup, [UNiagaraSystem](API\Plugins\Niagara\UNiagaraSystem) * System )